Dev tools · alternatives · 2026

24 alternatives to XMas XSD Schema Tool

Provides tools for XML developers like xsd2xml and xsd2wsdl

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. XMas XSD Schema Tool launched in 2023; newer entries below may have overtaken it.

1. 1
   Json To Xml (XSD) Schema Converter▲18

   Convert JSON to XML Schema (XSD) effortlessly

   2025 · its alternatives →

2. 2
   Schema Validator Browser Extension▲122

   Boost SEO with One-Click Schema & Rich Results Testing

   2023 · sproutseo.io · its alternatives →

3. 3
   Programmatically Generate Diagrams for GitHub Readmes▲220

   🧜‍♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender

   2019 · github.com · its alternatives →

4. 4
   GraphQL Inspector▲107

   Bulletproof your GraphQL API

   2019 · the-guild.dev · its alternatives →

5. 5
   Schema Generator Tool▲133

   Generate more traffic to your websites using this free tool.

   2022 · digitalscholar.in · its alternatives →

6. 6
   Generate React forms from JSON form schemas▲107

   Generate, validate, and parse React forms using Mongoose-inspired JSON schemas - SteveVitali/react-form-generator

   2015 · github.com · its alternatives →

7. 7
   Verify JSON using minimal schema▲91

   verify-json. Contribute to yusufnb/verify-json development by creating an account on GitHub.

   2020 · github.com · its alternatives →

8. 8
   volder▲63

   Schema builder and data validation for javascript

   2022 · github.com · its alternatives →

9. 9
   Universal Schema Studio▲2

   OpenAPI, YAML, JSON, and XSD schemas Viewer and designer

   Feb 2026 · its alternatives →

10. 10
    Xq – command-line XML and HTML beautifier and content extractor▲104

    Command-line XML and HTML beautifier and content extractor - sibprogrammer/xq

    2022 · github.com · its alternatives →

11. 11
    FSET▲93

    A JSON Schema editor, no more writing json schema by hand

    2021 · fset.app · its alternatives →

12. 12
    JSON storage bins with schema validation▲74

    2018 · npoint.io · its alternatives →

13. 13
    Flake schemas – teaching Nix about your flake outputs▲32

    Flake schemas enable you to teach Nix about new flake output types.

    2023 · determinate.systems · its alternatives →

14. 14SO
    Schema.org with GitHub and scripts: A tool to make data more useful▲69

    2019 · ditabase.io · its alternatives →

15. 15
    RapidSchema▲99

    Generated Schema Markup from code you've already written

    2025 · its alternatives →

16. 16
    Schema Generator▲14

    Schema markup generator & validator

    2024 · schemagenerator.dev · its alternatives →

17. 17
    Data & Code Tools Suite▲9

    Developer toolbox

    2025 · newfuturetechnetwork.com · its alternatives →

18. 18
    Schema-DTS, TypeScript Shims for Schema.org and the Semantic Web▲27

    JSON-LD TypeScript types for Schema.org vocabulary - google/schema-dts

    2019 · github.com · its alternatives →

19. 19
    Schema Validator▲6

    Free json-ld & schema.org validator tool

    Nov 2025 · schemavalidator.com · its alternatives →

20. 20DS
    DBML – simple DSL language to document database schemas▲57

    2019 · dbml-lang.org · its alternatives →

21. 21
    schema-tools – Build and Edit JSON Schemas▲5

    We built this in a day to help save some time internally and wanted to share as others might find it useful for managing structured output schemas. There’s a few other tools out there - but none had exactly what we needed! Key Features: 1. Two-Way Editing: Paste in an existing JSON schema and edit it within the UI 2. Data-Type Validations: add validations to fields 3. Local Storage & Version History: track your edits, don’t lose changes Link: https://schematools.herondata.io Source Code: https://github.com/heron-data/schema-tools

    2024 · schematools.herondata.io · its alternatives →

22. 22
    Libre-Wsdl4j▲11

    A maintained fork of WSDL4J. ⛺. Contribute to librewsdl4j/libre-wsdl4j development by creating an account on GitHub.

    2019 · github.com · its alternatives →

23. 23
    Structured data validator▲11

    A full-featured schema.org rich cards validation tool

    2020 · redirection.io · its alternatives →

24. 24
    CSV Schema and Validator▲8

    CSV Validation Tool and API (CSV Schema RI). Contribute to digital-preservation/csv-validator development by creating an account on GitHub.

    2018 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →